Prothane 7-221-BL GM Front Control Arm Bushing Kit Black Polyurethane - 1964-1966

Prothane's 7-221-BL Front Control Arm Bushing Kit is engineered to replace the factory rubber bushings on 1964–1966 GM vehicles, restoring precise front suspension geometry and eliminating the vague, imprecise feel that comes with worn OEM rubber. When control arm bushings deteriorate, caster and camber settings drift, tire wear accelerates, and handling becomes unpredictable — Prothane's polyurethane solution addresses all of these issues directly.

Key Features:

• Black polyurethane construction — resists oil, grease, road chemicals, and UV degradation far better than OEM rubber
• Superior compliance resistance — minimizes control arm deflection under load to maintain consistent alignment settings
• Precision fit — engineered specifically for 1964–1966 GM front suspension geometry for a direct, no-modification installation
• Improved caster and camber stability — keeps front suspension aligned even under hard cornering and braking loads
• Long-lasting performance — polyurethane retains its shape and durometer rating over time, unlike rubber bushings that soften and crack
• Includes all necessary bushings for the front lower or upper control arm position (verify application for specific arm)

Prothane is a trusted leader in polyurethane suspension components, and the 7-221-BL is part of their Total Kit series designed to give classic GM vehicles the handling precision that modern drivers expect. Whether you're restoring a classic or building a performance street machine, these bushings deliver a measurable upgrade over factory rubber.